Signaling system for railroads.



PATENTE@ JUNE la; 1907.

F. M. ELAK. SIGNALING SYSTEM FOR RAILROADS.

APPLICATION FILED 1350.151902.

'7 SHEETS-SHEET 1 @i M www Q WMWN m ww. be w No. scf/,0211 PATENTED JUNE 18, 1907 F. v1. BLACK. SIGNAMNG sys-TBM POR RMLROADS.

APPLICATION FILED DEO.15,1902.

7 SHEETS-SHEBT PATBNTED JUNE 18, 1907.

E'. M. BLACK. SIGNALING SYSTEM FOR RAILRODS.

APPLICATION ILED DBO.15.1902.

if n Y 7. w f

hummm' wf/wMwf/f lo. 857,021.. .PATENTED JUNE 18, 100'?. F. M. BLACK.

SIGNALING SYSTEM POR RAILROADS.

APPLwAToN FILED 1130.15, w02.

YSHEE'LS-SHEBT 4 PATENTED JUNE 18, i907.

MIL'RADS.

vsfisn'gssu.'

E'. M, BLAQ" SYSTEM FOR APPLXMTLON FILED .mm 15, 1002* NALI SIG

` station. are

FRfliNC/ll lvl. BLACK.,

:implication .Eleni EGGS-15:0? 15,1902, 4Smal T0 LZZ wifwm it iii/053; com/eww Be it known tlm?, fl., Financie BLAUE, if citizen of the United Stuten, rnsiiling ist Kin: Caid, in the county of Anderson nud State of Kansas, have invented. new and useful lnk provements in Signaling Systems for lnilron-ds, ol which tlie following n. poeilicn-l tion, l'eferenei, boing had therein to t m'.- eompunying drawings, 'forming n. part thereof.

My invention relates to u Combined entoniatic und munuitlly operate l elnetrie signal- .in system for rui lronds.

he objects ol my invention nre as follows :ww to provide n reliable signiilii which a stnt' 'an ,gt-eintor o A be keptndvisnd of theI position, ilireetion und speed of n train or tiiins; to enable n, Station Operator or despzitelier io signal by eleetrienl impulses' to :i train or tntins, or 'fine versn; to onnble u station operator or despatch/.ir to conimunientn by telegrnpliie or to". apparatus with :i tfnin or twins, or to znltomntiwzllj reeord tin; po tion, und Spee-'l 0i: :i *min or triunfa um nuls to or from the suine, and to ena-Linn f operatore, to ninfomani?. the paesonifia nl" other l'frnins in tino sumo loe-it er usci-ion.

Utlnl oliuieets .n my invention. :We here/nb after set lortli.

ln the :isnonnm-nying d'inwin` trate ngfpurntus 'ny iniuns ol" vention may be in und into eil'of. is n dingrnnnnntio vi t, .Jiu i w ci n complet@ rntus set vlor nutlnznitie sngmilnig, on f..

plete'section or biooli lie. 3 shown und tions oli tlio lvloelug niiineent the two Stations beingsliown. .in this vien' one train or our is shown moving enst linteeu-tso utsitionf.,

yund. the content brusheso two oilng-r trains moving went nre also asliovn. lr. tino View none of the eontuet brun' es me. eonnortod with the line contina. [it lne dnepiitinenn shown we nezvix of winni-mini uonnested with two bioelis or i..-n.=, of the sys'- tem. (ln the recording; time@ :it tlio i spsttehers station nre sl'iown the it# nin of tlieftiueo trains: in die two bloe 1 ie: n diaigzmnmutio vie' o? sapin?. smnecircuit und located it 1` wo this View n trs-tin eppurni i tion for automatically the Contact 'Dru being shown com with it vlnr contacts, the .f :ontin-l pruning-:a ol' trein. being shown .not .line Contacts. ln this;

i fusil lniin i'PifiiVl-ENT 'F KINCAID, KANSAS.

n ninwnnnn;

laitontec June 153, 1907.

el2 the .indieutors at the Stations indicate the position of the train C relative to the stations, Fig. 5 is n dingrnnnnntic View' .similar to that sliownin 2, the uppnrntun being shown us. it is when u trnin is manually signaling the two inl nennt stations. Fig. l is n View sinLilzn to l e. 2 und 3, the nppnmtus being s'nown ne; it is when u station is nntnually sig n ling n truin. Fig. 5 :i dingminmntlc View ol one set of iippin'utns it the despatchslntion connected with two co-oporntng lino conductors. In this vi. rntns shown eonnected i f n the naar pair of line contacts, tire train being west bound, :sf indie-eind by the record on the tape of the recording instrument at the desputchern stntion, und the apparatus set for eutometio signnling. Fig. (i is n View similar 1:0 lli?. 5, the tmn iippiirntus being shown eomleeted with the for pair of line contnots, and the trein inging east bound. Fig. 7 is n diugrununntic View of ono set oi apparatus it tire despittelv ors station und. the nppnrntus'of two opposi tel); moving; trains simultaneously Stute .milf ieeily si'cgi'nrling the despntclier from the fer :ind neer pinr ol lino contacts respectively. Fig. t5 is zi View snnilzn' to Mg. 6, showing nn einnlwund train at rest und manually signuling; the desputelier from the fur pun of line eonnes. ln 'this View the recording tape nt ilu, deepnlcliers stntion shows the reeord ol' llio previous prog-ross ol the twin :ind the :signada which lieve been received from immuni manipulation ol the trein apparatus. iiig, l is n `View similar to Fig. S, the zipparmus being shown us it is when the desputclier is nninunlly signaling, the west bound directions and speed of trains und forroM` ceiving signals from trains at mi operators nntion4 Similar ndientors muy be oni-- pleyed loi' similar purposes in the trin eireuits. Fig. 12 in is, diagrmmatie View oi: common electric bsll auch ina muy ne erre ployed in the trein circuits for giving nudiole signals. Fig. i.) in 1%, diagrinnmntie View wv e train nppnlli uof a common torn?L ot' electric recordingr instrument which ning? be employed. in connection with my invention for recording the position, direction end speed of trains and 5 signals to and from the seine. Fig. 14 is c diagrammatic View of two pairs of contact 1crushes employed on each train and the conductors which respectively connect corresponding brushes. ln this View two of o the brushes of opposite pairs are shown electrically connected. as is the case, when the brushes are used only for signaling autoinaticallyto the stations end the despatcher, end the trein circuit is not provided with in- 5 dicating or other signaling ineens. Fig. l5 is s View similar to Fig. the ground lacing employed lor 'the return conductors of' .the several circuits.

Similar characters ci 4reference denote o similar parte.

VA end B denote two adjacent intermediate stations.

C denotes car or trainJ end l denotes the despatchers station located at srry suit- 5 able place on the line of rail wey. All ste.

tions excepting,T the ones at the end ci the line are provided 'with like equipment. At eac-h station A-B ere two identicalv sets ci apparatus which ere respectively connected o in circuit witl'i line conductors l. end 2 which extend in opposite directions from eicli sta tion and connect with corresponding sets ci eppsretus at the two adjacent stations et either side. Each set of ep aratus at a station i or comprises the to lowing named elenients:-- a glow lare. E, current indicator E', sounder G, key H, liattery or other electrical generator l, and circuit making and breaking deo vice, such ase plus; switch J, all connected in series with each other' in the order named by moans of the connecting conductors 3, 4. 5, 6 and 7 respectively'. The switch J is connected hy aconductor 8' with the line con- 5 ductor 2.

relative positions of the elements ncnied may be changed Without intcrferring with their operation. Any current indicator F may he er'nployed. For this purpose e curo rent strength indicator is preferred, and in Fig. 1]. is illustrated en. ordinery current strength indicator 'that will moet the requiremcnts. I

Referring to Il, which is s dis'rreni- 5 ma View lshowing; the rear side of' t e instrument, 9 denotes :t disk hai-ving onl one side a diei fece with characters arranged in a circle and denoting current strcnvtli. i l() is a transverse rotary. shaft extending through o the disk ond having on its forward side en indicating liend 11. or pointin i' to the numerals or other characters on t. c diei face. Tc the roer ond of t lo shaft 1.() is secured s pinion 12 which meshes with a gear segment o5 13 rotstiv'eljyY mounted on a pin 14 secured to it will. he understood that thel the dislr 9. -is an iron errnsture 15 disposed adjacent r. .1 ob 4.92.1.

Attached to the gear segment i3 to one end of e core 16 of a magnet the helix 17 of which is connect-ed et cne end to one binding post 1S, the other end of the helix being connected to the other binding post 19. A coil spring 20 is secured at one end to the disk 9 and at the other end to the segment 1.3. The spring 20 retrscts the segment to the'initiel'L position shown in Fig. 10. When the lielix i? is energized oy a current passing therethrough the arinsture 15 will be swung against the pull of the spring 2l) a distance corresponding to the rength of the current passing through the heilig and the hand 11 will thus indicate on the dici strength ci the current. Conductor 3 cci'inects the hinding posi i8 end lmnp l, and conductor i conn nects binding-oost 19in/ith one terminal ol the helices trie sounder G. the other termi nel of d. helices being connected tothe con-- doctor which connects Witli'a contest 21 against which the key H normally rests. The sounder 'G end key H ere ci the ordinary pal'- tern end require no description. .Each set ci sp* aratus et each station A and B is pro- VVi ed with en extra current generator such es a battery 22 to enable the operator et the station to send to the train or car (l signals other than those he may send by manipulatin the key H. Une pole of this battery 22 is connected by a conductor 23 With the line conduct-or 2, the other pole being connected loy a conductor 24 With one contact of a ver, richie resistance device of any common type. ln. the drawings l. have illustrated as suoli variable resistance device e rheostet K haw ing, c. lever 25 connected by e conductor 25 with the conductor 7. Seid lever is adapted When properly swung to successively' strike e plurality oi contacts 27 connected in. series with eecli other hfy' a series ofresistancc coils 28, one of said contacts being1 connected to the coni'luctor 24. By swingingl the lever the hatteryl may he out out of circuit or its current may he utilized in lfull or nsrt for sending signsls which shell operate certain devices carried by the cor (l and which will now be described. Each train may have s csr provided with an appiiratus having the simieilqind of instruments .as constitutcorle set at the station A or l, und connected in *it similar manner excepting that for thc lamp ll] on the car is substituted an ordinary electric hell l) one binding` post 39 of which is connectod by' a conductor .29 to the hin ling-nost 18 of the indicator F. The other binding post 30 olthe hell li is connected to econm ductor 3C which is connected to e. conductor 3l the ends of which :tro connected respec tively to two Contact brushes M disposed et opposite sides of the'carC. The car also cirrries at ofppositc sides two other contact crushes l\ connected with. each. other by' s conductor fZZto which is connected a conductor 33 Which'is connected to the circuit cioscech other, and being ol` substantially equal ing device J on the cer in e miinner similar to strength, when the cnr brushes M and N are 'the conductor 8 and device d nt the station. not in contact with nnyolthclinc contacts noy A conductor 34 is connected tothe conduct-or current will flow 'through the circuit, but

33 et one end and zit the other end to the pcie when the brushes M und N do ineke Contact of the battery on the cer C e rrespondingv with any pair of contictsconnected with the t0 the pole to which is connerted the conducline conductors l :ind L the tra-in circuit will tor 23 at the station. The-disposition of the connect opposite sides ol' the stntion circuit, Contact brushes M and N nt euch side o'l the thus forming two circuits, in which the. united i0' cer is such that the adjacent crushes M und currents ol both biitteries I pass in one direc- N will respectively connectk simultaneously tion through the cnr circuit. Thus euch stewith two oppositelqT disposed contacts contio'n indieittor and so under ,l isopcriited by nected' respectively to the line conductors 1 its own buttery I, und the strength of the our? and 2 -bjy the conductors Disposed et rent in the ci cuit will depend upon tlie posisuitable distances nps-rt between the stations tion ol the ein', that is, whether its brushes A and. B are e series of pairs ci such contact-s nre'on the contncts a, i), c or d, es more resiste denoted respetiveij,7 by o, t), .f z, d.' ance will bein the circuit of any given station In Fig. 12 is diagrnnnneticnlly represented when thc cer brushes ure connected with en electric bell of common construction ind distant than with neurer contacts. The cur e@ of a 'type suital'ile for use withiny improved rent strength in any station circuit therefore 'system or" signnling. ieierrirn; to said YFig. depends upon the position of the cur rela- 112, S5 denotes the swinging bnr carrying the tive to such stntion at the time contact Iis clepper 37 and urmeturci disposed o iposite nmde. The indicntors F which denote the the core' EG of e. magnet, the helixV yl0 ot which current strength :it the stations :ind vB will has one end connected to the binding; post .d therefore indient@ the position of thc trains in 'towliicliis connected iheconductor 2i). The the blocks in which such indicators nro loother end of the helix is connected to e ecn'- cnted. The batteries 22 'at the stations are tact :1 -'l egxiinst which the bnr Sois nornutlly provided so that the trnin muy be signnlcd -held by n swing connected st one end to to stop bythe bell 'il and communication by 'the DS im( Rill@ Other end to the base L. .s predetermined omle be luid with the. train A conductor 453 is connected tothe ber 3b operator. The errangernent'of the batteries and to the binding pest ftloi me oeil. When 22 is such that they will be in series with :1nd e current'. ci snllicient s th l'rari.'frscs the assist thc aidjncent batteries l when suid baithelix Ll() the :atrrrnture iii. he draf-vii toteries 22 nre out into the circuitns described Ward the core 3) ngeinst the te on of the hereinniier. 'ihe buttcrr 22 on the cur (l is so spring 42' thus causing the clsppx 'estri'iic connected with the triun circuit that when the gong s3 and et the nie tii'nc breaking seid battery is cut into eircuit es litter dethe circuit, :it the contnctil. flniysueh cnrscribed, the current from said battery will rents will. operatey the bell L :is nre greater pass in the s/nne direction. in the trein circuit i6' thun such currents :is normnliyused ior :is they currs'nts from the batteries at stations automatic rind nisnuel signaling. 'The bind- A nud B. 1. i l

ing pos-:t t) ci' the,indicei if on the cnr if) is By rofei ring to iiig. 1t) :i clem' iden may be conneetedb'y :i conductorwith.theternrir il obtained is to the passage oi the currents of one o? the helices ci the on seid through the 'circuits when the trein circuit is 45 cnr, the other te inn-l oi' being in circuitwith the station circuits. In this connecte-:l to n conductor 5 :'Jhcli connects View the line conductor 1 is shown connected with s Contact 2l ngiiinst which the lief 'rll et its ends to the binding posts 18 of the. two on the cer normally beers. The ireyfil' oi' the station indicators. Batteries I nre concer connected by it condirifor 7" with the heated by conductors 44 with binding posts switch Jen the einr whim switch is conli) oi indicators F respectively. Conductors .ed to the. cci'rducter :SB previously de- 45 connect. the other poles of the batteries .i scribed. The iever 25 oi' the rsrinhle resistwith the plus1r sr-fitehos J which are connected er if; on the csr .is conne ted by' e. tcnducres ectively with the line. conductor 2. 'Bae tor i'vsitht i i 7". iA ihl `moted terres 22 are connected by conductors 4G withI thst '4" ses conductor i2, and rheostzit lovers 25 are conthetiecl. iron necied. by conductors t7 with conductors t5 'f3 sind fr, thut the other nu' f respectiveiy. On the cnr C conductor 3l et- Will be '-ositiened so as to eng trtched to brush M' is connected. by conductor 18 with binding; poet 3.8 of the indicator F of the cer, the other binding post ot' whicrr :is

l 1 connected by' ci'inductor 4Q with the plustrtnn Cl1`vl1! will siritch i? oi the 'enr which is connected. by'crin directie-V llii-icli- V cluetor fi() with conductor 32 coiu'iected to i is '5,39 so if .1. brush N. "onductor 5i connects the carbon *12.** wir@ pole o! ih# battery 22 of the cer with con- IOO ' cnnectsii ley conductor 3,5 in condui'oi LZ.

Tlnce ilus; cuins will pass hy conductors 3i and 8 'n the csr indicator l?, thence through said indicaior and 'h v way of conductor 49, plug switch .L conductors 50 sind 32 to brush N, ..heni-o hy ih@ opposite contact and conductor 35 to minlncoi l in which the surfent iliviils and pass/0s .in op# posits (liif-i'iinns lo ih@ sznion ind-mois if, and. thones by ininlucozs -il hawk 'm lun-- ei'ies l'. En the (linl iii-ces of ihn indicators; F, si, tho swions, the points are :niiingmlsn *sluit thej,T coi'resnmnl-rcspoit ivc-ly to the* fontnis a, b, o, ann (l. Thus Winni zi 1min unt-:ei's :i hlm-lq, the hand of thi* inilifnioi ai( the distant. station will sinwssiily vpoin tn the numerals l, 2, 3 .fir-.nl i on the dial linv i the train lirushes M and N successively stiike comm-.is lmtn'ein ihn liviniimils 0i" ihn bloc-li. Thus, fior insimne, Icferring ngnin to Fig'. i0, with both hniniies in iii'iuit u1; ooih stations A and. B, :mil with thv hinslws El sind N on the train on oontzms 1., in@ in liestoi hand. l] at station A, which is farther from contents i) than station B, would poini to Z on the (lin-i hice, while stili-ion B,

LH.` the indiaioi ini-nd 1 i nlf they indicator in, station B would point to 25, which numeral would reprssent m station ll 'ihn coniwis the saine Contacts being z'epmsentod nl. sta tion A ny in@ numeral "i2 on the dial face :it theiatlefmmeflsmiion. llwindicnoiF the train living actuated hy che sun o1 the two Curie-.nis li'oln the stations will dennis the newness to a station by the position of its lmnd il.

Referring again parteula-rly io Figs. 2, 3 snail, it will he noznl thai', ie om' carries i I l l i l I i l l l i l i l I l n0 hatterv Corresponding n tin0 hnticiiefs l,-

thesouniler' G, indicator l", and heil l.' nn the our being; operate/il 'h v tirs derived from the stu-tions, '.hf hutte-ry '32 on the csr-boing' Pmployeil to (linnniuniczito with the sila-tion onnintors zinii ih, piitchvl; Vxlinn tlm' station unil csr. uppn'inlfns um sm', i'or antonm't-iu signaling, shawn in Fig. l, thv 'nlug switches Junrl thek \,'s l-l ut. theI smions :ind kon thu mu' mi all ulnsiil, unil the vhrinlilo rvsisimm: lin/ers :me swung nil' from thix contacts 27 su :is to sul, ont. hi` lmtfin'ins 22. With h@ zipnsmbns in lho i'onililion .shown in Fig. 1, :mi no (zur hrnshos on ihn ci .ms a, b, C 01 d, the i'opuintinj; ammi'nins ai'. stations A nnil l will hv in i-.losml iix'irnil with @mth other, :mil lnziiiivs l living ownnsmi ,hr to @zich oihm nn vnrrnni. will ho hnwlng lfhrongli hr eizi'nny in wim-ii thv simmons uw located. ln this voinhiinn nl iilun's, ull inc hands nl" 'the station milnuioi's li nni'l nl illu l l l l l i l i l l i* nn the an? this harace daheim v li' now 2.

the. mais poin on @ich in circuit snunilm il, conductor contact 2", ling;

vonilni-ioi 7, plug swituh J, camina-isis 3S inni 32 to hrnsh N, will cause. the inilii's'wi .hand nl the wir imlii-nioi' F to swing pusitions intelnwiintf 7,9m unil 4, 'the hiii, s2 the conmnts Qonignons the staifiins, pointing: in l and then successively indi failing nume-mls of decreasing viilue :is lha train neans the middle of the block, nini from Linz iniilillfy of the blnirl: snciissivnli' n a n denoting numerals of lncx'easmg vziluc until the. cnnzuc, next n smion is struck when the wir indicator hand will india-nte 4 signin.

'if' lha Lrnin opvminr desires to coinnnini can with n. station by the manually o eiiifil mechanism, unil the hinshes M sind are :in a pair oi" cnntuuis, ns for instfmcs contacts a, as shown in Figs. 2 snai 3, he opens the train switiii l :mil swings thv lover .25 unto the vontscs .27 ol' the l'ininrvariable .resissnit K. thus mitin into cirvnit the 15min lmiibei'y 2:2. This lmtnez'y is arranged so that i nnitos nfi'h ihn currents from batteries il. 'ihvn hy menus ci n. gneinx'migml coils, the

kruin izipviuloi msj.' hy malins of lever 25 signal stntiuns A. and B, and thus denote .fih n'hii-h stallion operaiztolhe Wishes to cnmninnimtv. 'l`hcv other Station operator hun' lhvn nomi his iioy H or switch J, after wlnr'h lhe tmin operator my connnunicste with thix voniwi-nwi smvion either by menus ni' llw inn' ll oi' Iiwei 25 of the train, und the sig-nuls i'iivivf-il h); the smi-ion in Circuit. may his .'i'nnslniil nl wml hy the onemtl t said stiniiz-n moans ol tho lmnp l, sounder G, oi' inilii'fior ns desired. (,h' the operator :it lhef sslinn in viz-1111i! may fonnnunicste will: ih@ inin upiint-ol in a like nimmer, the signals huingj infmpi'ei,i-il h v' the trnin @new noi hy his -sonnilci' i?, oi' indicator l?. Cu thv train iipoz'aoiiniuv communicate with hoi siniiifns siinnltmwonsly by having holzh inozntoi's lisvv' their instruments in circuit with ihn iini. "ihc gioni' lumps li) also notify IOC lli

the operator et e station every time e train in the block stri-lies n pair of contacts.

lf with the apparatus :is shown inA Fig. '2, the operator et station A wishes to manually signelthe train operator, he opens switch J et station A and swinus lever 25 onto contacts 27, :1s shown in Fig. Li. The lever 'l5 is first swung ontothe lest content L27 connected with conductor 24, thus throwingl the battery 22 et station A into circuit with the batteries l nt bothstntions. The united run rents will operate the train bell L. The trein will then be stopped with its brushes on u pair ot' contacts, es f1., es shown in Fig, ll. ln this position of the brushes, the dial hund 11 of the indicator et station B, being; notuated only by the battery i et stadion l, will swing tothe character il ol indirntoi l? :it station B. lf the operator et stntion A, desires to communicate with the trein. operador by means of his key H, the train operator will notify the operator. nt station B roepen his switch J or key H, after which the operctor et station A mcy communicate hy key, Or he may employ the lever 25 for this purose, if he so desires. By observingr the dhd mnd l1 et station A the operator et such station may see the character ol'V signnls he is sending the trein oper-eter. When one ste-- tion is cutout oi" circuit, the heuds ll oi the indicators .of the other stetion und or the trein will move synchronously when signals are sent. By observing the hond il et his station en operator .muy determine the direction of movement of the trains, and by notN 'ing the intervals of time between indicator sifnels, he nia-y lenrn the speed of movement or such trains.

l/Vhen two trzuns desire to communicate -`with eri-ch other, they stop respectively with keys H or plug switches J, und the trein operators niey then conununicnte with euch other by employing the levers of the vnricbih resistance c evices li on such trains; swinging the levers onto t-.ie contacts 27 and opening the trein switches el', fie trein che A tors ineyisignnl with either 'the levers .25 or 'the keys H on seid ti'nins. the sigrnils `being interpreted by ineens olE the secnders Chor dial hands l1 on the trains. Tfryith two treins so located, a ste-tion operator nuty con'nnuuicate with either trein. by having the other station and trein opens-tors open *heir switches J or keys H. When e, mir i Supplied with signaling zippers/ti brushes M and N Iney be mnnerted :vidi .eea-,li other in` nny suitebie retener, es by c ronducf tor 53, es shown in 'FY 5i.

Now follows :i description ol the trein del resent c spatchers apparatus-At the i 1x ,Y neun-f conueined v l spending termin station B muy be located one or more sets of nppnretus, euch identical with the other nud ot' e number corresponding to the length of line of reiiwey er to the number of trains opere'ted on the line. ln the drawings I have iliustreted two identica-.l sets of apparatus. Referring perticulerly to Figs. l, 5, 6, 7, 8, 9 end 13, it will be noted that each set of nppnrntus :it the despetchers station D is provided with' a sounder G, n key H, n battery I, plug' switch J, connor-,ted respectively with erich other by vonductors G sind 7, in the sinne ninnncr es :rre connected the similar eienients :it station end i5. Y clope/"etes et the despntchens station D is provided with n vnriiible .resistance device K herring; one nintect 27 connected by e conductor 211i with one pole ol en extraJ source or current generation, such us a battery 22. The variable resistance K is provided also with s lever :25 adapted to successively connect with contacts Z7 end connected `by e conductor 2o' with the conductor 7 of the set. ln lieu of the indicator F and lmnp E e currohr strength recording instrument is used in euch set et thc 4deslnulcliefs station. Any ordinary l'o'rin ol' instrinnent which will record currrnit strength. :nity oe used. ln Fig. lll l. here illustrated diei; tnuneticelly :i current strength recording instrument ol' en ordinery type which may be employed in connection with iny improved system oi" signidinfr. This forni of instrument is provided with nieu-us, euch is two rollers 54 for currying e, loingitudiindly niovehle tape 55, rotetion being imparted to the rollers 54 in any suiteble manner. A stylus or pen 56 providel with muy linown ineens for making inni-lts on the tape is secured nt one end to onernd olf :i solenoid core 57 which is reripioenli-fe in n direction trrtnsversely to the direction of niovrnnent ol the tope 55, so that the pen {it} they :nahe transverse es well es iougitndinel incrire on the tope. Attached to the cor o7 is e, coil sprint;` 5B which nornn'illy :eircom Athe core to n position in which the peo n incite :1,uontirniousline d hinted by 5h on the t a '"ihe helix (50 oi the id li-spirited so that when energized ove the core 57 in :i direction opposite ther in ,vhich the core ino'ved by the sprinff un stetion l? line coiuluctors `i number to the nuinber of niente et such stetioii extend the line oi rsiil wey, such line nernllel with conductors being delmted by 61 end 62.

esponding terminals elE tl e, helices ,l cigmnected respectively to sind conductors l end of, the other terminals of said `helices comlucto's 4; to corre- .i of the sounder G- helices the i' terni nils oi which nre corinectrviv rrspeciveiy to the crmductors 5 es heifer Conductors 23 connect respecme enr-hon polos of the entre batteries ve ly IOO log

seno-si ai to the train operator, the longitudinal dotted lines following the long 4transverse line denoting that the despatcher had caused the bell L on the train to ring. rl`he lengthwise movement of the tapes 55u-is comparatively slow, so that short impulses, as are sent in ordinary signaling make lines substantially at right angles to the movement ot the tapes. In ease that two trains in a block simultaneously strike diil'erent pairs ot contacts, the pen 56 would` make on the tape a transverse mark corresponding in length to the snm ot the strength of the current, and the despatcher in such a case would determine thi,` present position by inspecting the lines prt viously drawn on the tape. instead ol` using metallic return cominetors l and 83 the` ground may be substituted `lor these conductors, as is shown in l? ig. l5.

Referring to Fig. i5, it will be noted that conductors S, 2h and 35 ol`` the station eircuits are run to ground instead of being connected to conductor 3. And it will also be noted, by refereneem the saine ligures, that conductors` S and 23 and tap conductors o4 run to ground instead oi connecting with the line conductor o3. as shown in li ig. l. This manner oi using the ground return in lieu ot amctallio return is Well known. The operation of the system provided with a ground return, as illustrated in Fig. 15,\ is in the main the same the manner of operation as already described with reference to the metallic system, as illustrated in Fig. 1.

lt will be obvious to one skilled in the art to which my invention ap pertains, that other suitable forms of current strength recording instruments, current strength indicating instruments. and signal sending and receiving instruments than those shown and described may be employed in connection with my signaling system, and that various modilications ot my inventimi may be made within the scope oi the appended claims Without departing 'from the spirit of' my invention.

Claims.

l. The combination with suitable Wiring, of means l'or recording current strength, and means by which said recording means may be actuated by electrical impulses traversing said wiring to iinlicate the positions of a plurali ty ol' trains.

12. The combination with a `current strength recording means, of means in an electric ein cuit for locating the position ot trains.

The conibinationx of two main line Wires joined through 'opposing batteries, means on a ear for connecting these wires between the batteries, thus closing two eu'- cuits, and current strength indicators at each end of the main lines.

4. In an electric signal system or railways, the combination vvith a current strength indicator located at a station, et means by l l, l i

i l l l i l li l l l l which said indicator is actuiurd to denote the positions oi' a plurality oi cars.

The combination with suitable wiring, ol two current strength indicators located one at each ol two stations, and means by which electricalimpulses trayersing said wiring actu-.ttes said indicators to denote inter` mittently the positions oic a plurality of' trains between said stations.

o. The combination with a railway line a nd a car, oi an instrument for recording current strength, a battery in variable resistance, all carried by the car, andlipeans lfor cutting said battery and `Jariable resistance into circuit with said instrument, substantially as described.

7. ,in combination with a railway line, a ear, and a station, of' instrument for recording current strength, a battery, and a variable resistance, all at the station; a pair ol' line conductors to which said station appar ratus -is connected, a series of spaced. supports arrz't-ngcd along the line close to-the track, a pair el' insulated contactpiccos lixed upon each ol' said supports, said contact pieces being connected to said line conduc tors, and a pair ol eon'tactbrushes carried by; the car in position. to contact successively with said pairs of contact pieces', substantially as described.

S. rlhe combnation with current strength recording means, olz means by which sait recording means actuated to indicate the positions and directions ol a plurality ol trains.

`9. The combination o? two line conductors, a series of spaced pairs ol` insulated contact-pieces connected to said line conductors, a car, a pair oi brushes carried by the car in' position to engage the eontactepieces of each pair successively, battery in the ear, means l'or connecting said battery to said brushes, and a current strength recording instrument connected to said coi'id'uctors, substantially as described.

l0. The combination ol tivo line conductors, a series of spaced pairs ol insulated contanzt-pieces connected to said line conductors, a car, an indicating instrument therein, a pair oli contact-brushes carried by the car in position to successively engage said contaet-pieres, a battery, and a current strength recording instrument, said recording instrunient always being connected to said line conductors, and means for cutting said battery into circuit with said line conductors for sending special signals, substantially as described.

it. The eombinatitm lwith a railway line and a car, el e. series` of spaced pairs ofinsulated contact-pieces arranged close to the track, tivo line conductors connected by taps to said'contact-pieces, an indicating instru nient in the car, a pau' ot'v contact brushes carried by the car in. position. to successively en- XIO seid pairs ci contect-pieces, seid 'busiies ...ec/ted to siii/ indice, G instw flpf'lus COH- tccrs, sciiti eppure Y veiiebie feeist- 'nsti'nme v l iccortiing cui-rent end means ici 'cutting seid cattery circuit for signaling purposes,

^ `vinscribed,

tieni "gneiing si,`

the coinz-insticn of e piumiityo`- i devices at tiie,'despetc'iiei"s oi'iice i ici' i'ecci'ding surfent ..tiengtii i Pn' 'oi'ectimting the seniemitii c sys i 5 tem of wiiing whereby the recorders i'ecoifi the positions and d'i'ections of iai-eins in i'ieii'- i: g i" c biociis.v y

i the various trein cicuits me V ci instrument n" eieby to l c "um, an( tzurnent vfieeby thc direcne various ti ein cncuits comme* 1u- 1 'i t wit zonnnon to ai: o? cuits, enc un 1n seid instsimciot-Wziceiw tiic spccfi y n ci' Lne trams in tiifveiious tiaiii omitted.

Y y. uyvsignal-n in circn s, e. su canin-,fi to ai! c n in Suid infine noemen, siiesfi :ma in the Vez-ions t; n

1 tec.

g system,

peni for.

miiwny cien-ric signuiing system,

n e, pimniity of tiiiin circuits,- a i'ecoijtiing instrunitnt common to ii oi" sind rcults, said iccoidmg instrument comprising c coniecoding instimncnt coinpiising a oon- U mpc,

recooing nie-ens whei'cby 'tieni position, spoed :1mi direction uniicetions in any ci sind trein citt-,tuts may be icgiiiiy imposed ci' with coie signal indications 'through said 5min circuits.

24. in a ieiiwoy eiectic signa-img system, n, nmin signaling?circuit., en electric indicut-ing insti'urnent therein, a ioci train circuit aiinpteii to close seid main circuit, means in the iocei tz'ain circuit for passing signals to said indicator, and means in said iocai ciicuiiy for controiiix'ig the activity of said indicator.

in ai miie/ty electric signaling system, e main signaling circuit, e signal indicator therein, iocai train circuit adapted to ciose seid ins-in ciieuit', and ineens 111 said iocai 15min cii ui*y ici" actuating sei'i indicator eccciifiing' to code and sinluitauieousiy controithe ener-'ry of the code impide-es.

` iway signaiing system, n pint, ,y of 12min. circuits, e single indicating instrument ccnnnon to sii of seidciifcuis, and

i *51th i'eccraiinv ineens in seid innt Winfrebjf thcposition and sn: i of vins in the various Jin circuits may inte' in. a cuient strength indicator in seid citci t, and means connected with@ car for siectiicaiiy connecting opposite siiies ci' sind circuit intermediate seid generators.

2i). The combination in en eiectric circuit, fn two opposed electrical geneivito'n located `11 said circuit, two cutent stcngth indicelors in said circuit, and ineens connected 'with un car foi." eiecti'icaliy connecting cpposite sides of seid ciicuit intermedinfie seid gecefators and interincdiete sairiiniiicetors.

The combination in .mi electric circuit, of two opnoseti electrical generators icc-ated i in seiii ciicit, e ciment etength indicator stnn'iv moving tape, und cuiient strength conm-iin ose-d upon .ef-iii tape concurrentlyA ieiity of train circuits, a singie iniiiccting in` cd eiectiical generators iocmzed in said circuit, and means connected with a car for intermittently electrically connecting opposite sides ol' said `circuit intermediate said generators.

3l. The combination in an electric circuit,

K of two opposed electrical generators located .rents through said circuit.

33. The combination in an electric circuit, of two opposed electrical generators located in said circuit, a current strength indicator located in said circuit, means connected with a car for electrically connecting opposite sides oll said'circuit intermediatel said generators, and means on said car for controlling the passage otl currents through said circuit.

34. The combination in an electric circuit, of two opposed' electrical generators in said circuit, two current strength indicators located in said circuit, means connected with a car lor electricallyr connecting opposite sides of said circuit intermediate said generatori-i and intermediate said indicators, and means for controlling the passage ot' currents through said circuit.

35. 'lhe combinationvin an electric' circuit, of two opposed electrical generators in said circuit, two current strength indicators in said circuit, means connected with a car for electrically connecting opposite. sides of said circuit intermediate said generators and inl'terincdiate said indicators, and means on said car l'orl controlling the passage otcurrents through said circuit.

36. The combination in an electric circuit, of two opposed electrical generators l1n said wcircuit, a current indicator in said circuit,

and means connected with a car lor electrically and' intermittently connecting opposite `sides of said circuit intermediate said generators.

37. The combination man electric circuit,

`of two opposed electrical generators in said and intermittently connecting op posite sides'V of said circuit intermediate said generators, and means i'or cont-rolling the passage of currents through said circuit.

39. The combination in an elect-ric circuit of two opposed electrical generators in said circuit, a 'current ii'idicator in said circuit, means connected with a lcar for electrically and intermittently connecting opposite sides oi said circuit intermediate said generators, and means on said car for controlling the passage ot currents through said circuit.

40. The combination in an electric circuit of two opposed electrical generators in said circuit, two current indicators in said circuit, means connected with a car for electrically and intermittenti)T connecting opposite sides'4 of said circuit intermediate said generators and intermediate said indicators, and means in said circuit for controlling the passage' of currents tlirou h said circuit.

41. The com ination in an electric circuit, ot' two opposed electrical generators in said circuit, two current indicators in said circuit, means connected with a car for electrically and intermittently connecting opposite sides oi said circuit intermediate said generators and intermediate said indicators, and means on 'said car for controlling the passage of currents through said circuit.

42. The combination with two sets of signaling apparatus, of two opposed electrical generators, conductors connecting said apparatus and generators in circuit, and means connected with a car for electrically connectinv opposite sides of said circuit intermediate said generators and intermediate said two sets ot' apparatus. u i

43. 'lhe combination with two sets of signaling apparatus,of two opposed electrical generators, conductors connecting said apparatus and generators in circuit, and means connected' with a car for connecting electrically/op )osito sides of said circuit intermediate said two sets of signaling apparatus and intermediate said generators, said. connecting means including signaling'apparatus carried by the car.

44. The combination with two sets of signaling apparatus, of two opposed electrical generators, conductors connecting said ap paratus and generators in circuit, means connec-ted with a car for ccnnectingelectrically opposite sides of said circuit intermediate said two sets ci' apparatus and intermediate said opposing generators, said connectinv means includir'ig signaling apparatus carrie by the car, an electrical generator carried by the/car and means foi cutting the electrical.

generator on the car in. and out of circuit with the signaling apparatus carried b y the car.

' 45. The conioziation with two sets eisig naling apparatus, of two opposed electrical generators, conductors connecting said apparatus and generatore in circuit means connectcd witlr'a carter electrically and intermittently connecting opposite `sides oi said circuit intermediate said two set-s et apparatus and intermediate said generators, said connectingr means including signaling mechanis'in carried by the cai', an electrical gen.-`

erator carried by the car, and means for cutting thegenerator on the car iii and out oi circuit with the signaling apparatus on the 46. The combination in an electric c'rcuit,

of two currentindicators in said circuit, two

electrical generators in .said circuit, means connected with a car for electrically connecting opposite sides of said circuit intermediate said indicators and intermediate said generators, twov extra electrical generators, two

'variable resistances connected in circuit rie-1 spectively with said two extra generators, and means tor cutting said resistances and extra generators in and out of circuit with said tnogenerators respectively. r

,47. The combination with a car, oi indicator operative by eiectrie currents, a signaling device iii circuit with the said in rlicator and operative oiilyby stronger currents than ,are einpioyed tov Voperate said indicator, an

electrical generator, conductors in circuit mtb said generator, and means connected with. the-car for e'onriecting,` said conductors incircuit With the indicator device on said carn 48. The combination With'a car, vof an indicator, and an electric bell on said car an l in circuit with eacli otliir, the bell being operative only by currents stronger than are normally employed to operato said indica/Iller.

e9. The combination with a car, ci an electric bell and an indicator in circuit with eaclii etliei'and carried by the car, tivo i'ionductors and an electrical generator in circuit with eacli other, means connected with the car vfor connecting said conductors in circuit with the of indicating the positions of a plurality ofv trains. i

5l. In railway signaling apparatus, the combination with a current strength recording means located in, an electric circuit, of a current strength regulator in said circuit.

52. In railway signaling apparatus, the combination with a curi-out strength recording means located iu au electric t' ut, of means for varying the resistance ci said circuit. f

53, iii Irailway signalingrv apparatus, the combination with two cgt-posed sources of current in ai: elcriric circuit, olu'current strength indieatorin said, circuit, und means connected with a train lor locating by said indicator the position oi the train.

combination and signaling to simultaneously denote onsaid indicators respectively the location oi a train.`

In railway signaling apparatus, tbe` combination with a current strength indicator et means tor sendinf-"to saidrindicator intermittent electrical impulses corresponding in strengtlito theI position of a train.

57. in ralilvi'ay sigiialiiier apparatus, the l vitli a` plurality of current strength indicatorl, ,oi means lfor sending simultaneously to said indicators electrical iinpulses corresponding in 'strength to the position of a train relative to said indicators.

.SSL in ra. v signaling' apparatus, the combination. u1. i current strength recording instrument of moans by which said instriurient may be actuated to indicate simultancousiy the 'positions of a plurality ofv trains.

v59. in railway signaling apparatus, the

`conibinatioii with a single instrument Wholly au toi natif i action, ot means by which said instrument indicates by current strength tlie positionsota plurality of trains.

The cenmiuatiori with a system of wiring, ci an automatic instrument., andl means by which said instrument indicates the direction or' a plurality of trains.

IOO

Gi. The com bination with a systemei wiring, of an automatic instrument, andi'neans by which the directions of a plurality of trains are denoted ou said instrument by vintermittent electrical impulses traversing seid system of Wiring. e -f 62. The combination with a singleinstruiiient automatic in action, of means by-.wliicli said instrument indicates the dii'cctio'.ii'- of c plurality of trains. I

3. The combination with an automatic iiistruinent, of means by which said instrument indicates tlie directions and positions oi a piurality of rains. l

64. The combination with :in automatic instrument, of means by which said instrument indicates the directions and speed oi a plurality oll trains.

o5. The combination with a current strength recording; instrument, of means by whi ch said instrument iiidicatestlie .positions and speed of a plurality of trains.

(i5. The combination with an automatic in- :-;"rri.iinrnt,;oi'moans by which sind instrunir-,ot indicates the positions-directions and speed of a plurality of trains. i

o?. The combination .with an vinstiiiineiit for recording current strength, of means by which said instrument is actuated to record the direction of a train. L

68 The combination with an instrument for recording current strength, of means by which said instrument is actuated to record the position and direction of a train.

69. The combination with an instrument for recording current strength, of' means by which said instrument is actuated to record the direction and speed of a train.

70. The combination with an instrument for recording current strength, of means by which said instrument is actuated to record the position and speed of a train.

71. The combination with an instrument for recording current strength, ofuncans by which said instrument is actt'iated to record the position, direction, and speed of a train.

72. The. combination with an instrument for recording current strength, of means by which said instrument is actuated to record signals from a train. L

7S. The combination with an instrument for recording current strength, of means by which said instrument is actuated to record the position and direction of a train and signals therefrom.

74. The combination With an instrument for recording current strength, ofA means by which said instrument is actuated to .record the position, direction and speed of a train and signals therefrom.

75. The combination with an instrument for recording current strength, of means by which said instrument is actuated to record the directions of a plurality of trains.

7 6. The combination with an instrument for recording current strength, of means by which said instrument is actuated to record the speed of a plurality of trains.

77 L vThe combination with an instrument for recording current strength, of means by whichsaid instrument is actuated to record the positions and directions of aplurality of trains.

78. The combination with an instrument for recording current strength, of, means by which said instrument is actuated to record the positions and speed of a plurality of trains.

7). The combination with an instrument for recording current strength, of means by which said instrument is actuated to record t ie directions and speed of'a plurality of trains.. s

80. The combination with an instrument for recording current strength, of means by which said instrument is actuated to record thc positions, directions and speed of a plurality of trains.

81. 'lhc combination with an instrument for recording current strength, of means by which said instrument is actuated to record' the. positions of a plurality of trains and signals therefrom.

82. The combination with an' instrument for recordingl current strength of means by which said instrument is actuated to record the directions of a plurality of trains and signals therefrom.

S3. The combination with an instrument for recording current strength of means by which said instrument is vactuated to record the positions, directions and speed of' a. plurality of trains and signals therefrom.

84. The combination with an instrument for recording current. strength of means by which said instrument is actuated to record the positions and directions of a plurality of trains and signals therefrom. y

S5. The combination with a single instrument of means for rccordingwith said instrument the position, direction and speed of a train and slgnals therefrom.

86. The combination witha single instrument of means by which said instrument is actuated to record the positions, directions, and speeds of a plurality of trains and signals therefrom.

87. The combination with a single instrument of means by which said instrument is actuated to record the position and direction of a train and signals therefrom.

88. The combination with a single instrurment of means by whichsaid instrument is actuated to record the positions and'directions of a plurality of trains and signals therefrom.

89. The combination in im elcctriccircuit, of means for recording current strength, means for generating a current in said circuit, and means on a car for controlling the passage of currents throughsaid circuit.

90. The combination in an electric circuit,

of means for recording current strength,

means for generating a current in said circuit, and means by which a moving ear may intermittently control the passage. ol currents through said circuit.

91. 'lhc combination in an electric circuit, of means for recording current strength, means for gcmruting a current in said ril'- cuit, a car, a current indicator on said car, and means for connecting said indicator in circuit with said recording means.

92. The combination'with means lor recording currents,travering an electric circuit, o|` means for genera ying a currgnl in said circuit, a car, a current indicator carried by said car, and means for intermitteln-lycounccliug said indicator in circuit with said rocording means.

93. 'lhe combination in an olor-,tric circuit, oi' means in said circuit for recording current strength, signaling means in circuit with said recording means, a car, a current indicator on'said car, signaling means on said carvand in circuit with said indicator, and means for connecting said indicator and the 'signaling means on saidfcar in circuit with said recording means.

lOO

.IIO

7of limousin' said circuit ior recording cu 94. The combination in an electric circuit,

r oiirnefins in said circuit for recording current stregth, signaling means in circuit with said 4recording,means7 car, o. current indicator,

n means on Said car and in circuit Wlth cago other, :md Ricamo for intermittentlycoliiieoting said indicator md sigimi- 'ignieans on' the car in lcircuit with said re cordirig'iiieans.'

Qllihe combination *in im electric circuit,

and sivnaiin strength,mfiriab1e resistance, means 'for cui,-

indicator oil siiid our,

ting the Variabie resistance in' and oritof circult with said reoordlnc, means, av corren@ generator in circuit' Wim said recording' rncans,l a our, and moans' on said-cur for opening rnd ciosingrsaid; circuit, when the car is traivciing; i

.96j Q'Th combination infin electric circuitE of means iii vsaid circuit for recording curr-cnt strenvih, @variable resistance, moans for cuttingsa'd Vnrifibie resistance in sind our.y oi" circiiifrriftfh said recording mcaim, n currciit gieiicrirtor iu circuit'wih said variabic resisimico, a car; mi indicator curricd oy Suid om'v iuciuis foy which Suid indicator is connected yiii circuit Wiih'said recording moans, und s.

second goiicritor incirouifr with said record 111g iiioanSL- 97.. Th com hiziiition iufm oic'ciric' circuit",

of nicaiis'in saidcircuin for recording current sticiigtihf geni dor in circuit with Enid rccoding ihcims, @Variable rcsisizinoc, uiczirL-s iorcui'pihg sziid varizroic resistance iii und out of circuit with Said rcordizig luciano, n. cur, :in y l humus for commuting said idicutor circuit with said gcuerrbror, @Varia-bio'rcsitimco on said mr, nud uuuuis fi r'ciitting"iiiei` vurifihicrcsisiuucc ou ih@ cui' iu sindou@ oiE circuit1 with smid ganci-mor.

Tho comhix'uuiou in' an ciociric circuit, ofAV opposcd `clcctricziifgcncmtors loc-mcd in said circuit.' n'nciccvrio huur) iocfircd iu Suid circuiti. ufud uicuus lconnor-ivdwith :L cir-r *for oiccricarily comucuug opposi (1c sldcs of sind circuit iutoixiudinic Suid gcucrn'iiors.

99.', The coi'uhiugeiiion iu :iu 'ciccti ic. circuit, of two( oyposcd cicciricni gcucrzrtors iocziicd in ,said c icuib, two .clcciic huups'iocziicfd in smid circuiti, amd moulu: conucctcd with rf car for cioctriczdiy couucciing opposiic sidcs of Suid circuit'iutcriumiimc smid gcucrotors mrd coimcctcd with uric of Hziiii triczii s czicrfrior's; a. current indicator, and moons coiiziccrecf'l with ai car iorcficcricoiiy sonno .ing opposite 'sides or said circuit iritermcdiate said gcncru'ors;

combination in au cicctric circuit, oiwo elector, fmd'mciiu.) cormcctcd with o @or for cioetricnliy conncctig opposite sides oi smid circuit iniormedintc said generators.

103. in n. railway sigmiiing si Tsiem', the comhimiion in mi eicc'iric circuit., ci iWo cicciricid gemir-dors, a current indicator, sind means. connected with ai' car by which when the. car is trarvoiiiig opposite sides of said oircui't Wiii he intermittently Corin/ciad int-erf niediatc said generators,

lUi. in :i rfriiwuy signa-hing System, the himivion in oueactric circuii', of two eioci gcucrairs, a currczi indicaior, a. phiraiitj; oi' contacis connected with oir@ sido oi the circuit, and means conncoted wiih, o cil-r for successively connecting -,siziid contacs with the opposite side of circuit.

E05. in lii. rafiwziy Signaling sjscm, the combination in im cieocric circuiti of two elec trico'i generators, two curro-iii', i.ndicfitors, and

comico-ting opposic sides of said, Circuit intermediate. said generators and intermedia@ l said indicators.

06. in o railway combination in an clac A ic circ-nii, of iw@ ciecfricfd gcncvruiors, two mirent iiu'iicriizors, and menus connected with gz our for iziierriftentiy coimcciug apposito sides of Said circuiI im immediate said generators mod intermediate Suid indicators.

` i0?, in a railway `comioiu 'ion in nu eioct 'cioctrimi 'i rfiora, fz, currcn-t strcigjiii iiil dicuor, mid.- icons cimuectcd with i 'for i cicctricoily couiwciug oppocito sides of said circuit intermedia@ said gcuorofor. io?? iu :i miic/uy 'siguaiiug system? combination in @in ciccric cui; clccricni gcuomtoro] :i current rciigif. imdb chic-r. und iuczius comcc'cd ii/'ith a wir for insiguiiiiug System; *who v circui'I intcrmcdizito mid gc.' .micro 10U, in n, raiiwny signaling system, the combination in un electric circuit," of two cic'ciriifni gcncriitors, tw cir-from, "indicators, rindiuczuua couucctcd w .i Muuioi intermittently cozmcctiug opposite Sidcs oi Said cirm i cuit iutmmcdizazc uniirgcucmors and ini-oriuodifiic Smid indicators.

' combination in' :ui cicctrh? circuit, of lini/ro 'cicctricui gcucmtors, two corri-fut strength indicators, nud menus comicctcd Wiii :i car for iutcrluiicu'hiy councctihg oip'iposiec sides of :mid circuh; iumruuuiiaic Sgiid @monitors und iuicruuidiazlc, Suid ihdicu-iors.

iii. in ai ruiiwuy sigiuiiimf: sys-hem. thc

102. iii zi raihmy signoing System, che

tric-iii generators, o current sirongtii imiiciifl mcainscoiineczed with :i car for oioctrioaily the ou, oi two tcruaiiicutiy couucctiug opposiuo side-s of scid N0.' iu a railway signaling svbigcm, he-

gnaiiiig system, the

r' rol car, and means for writing 122001-111.; o'i 111 .Carried respectively by 11 plumli'fv `of oo111l i11ntio11witl1 111011115 for recoidiug 1u'- ront stfrongtli, of 1111111115 loi' souilmg io .1111

locordiug 111011,11@I olciftliuzil 111171111151111 corro-i spouding iu strong-H1 to tho position o1" :1 train.

112. The combination in :|111 oloctfriv ci cuit, of'iuoans for recording ouri'out Silougl l1. :1111i circuit closing 111911115 myriad by 11. 1:1112

113. T110 c0111biuzitio11 i1?L 1111 olm'cl'ia. f.'i1- cuit, of moansfoll'ooo'ding41111111111;strvngili, and 111011115 carri-ind by 11. cui' 'for electrically connecting opposite sidon of s111111 Circuit.

114. Tho ooiul 1112111011111 :1 olom'ic Civui', ono sido of Whivh is provided with :1 g1l11111i` n .of contacts, of current stirougiyli 1".y 1111111151' moans, and moans omriod by 11,. 1":11' l'o-.i oleo-- tiricall)v successively 001111110111115; said contacts with the opposite Side of Said circuit.

115. Tho combination .111.1111 electric cil'- cuit, of 111011111, 'for wliiing records o1" vureut strength, and means carried by 1 C111* for Co11- trollinO` said recording means.

116. Tl1e,oo111bins1tio11 iu 1111 11111111111; 1111 cuit, of 111011113 for writing relloids of 0111111111', Strength, and means carried by C111' for :sui-- oessvely actuating Said recording' 1111111115.

`117. The combination 111 1111 i-i "p cuit, of @i1-oui t controlling moans 1;

strength, said woords denoting speed and direction of the c1112 118..'1110 combination in 11.11. 1.1111011511 nu cuit, Of'a plurality o Circuit closing 111@ :md current strength recording 111111111@ 111, circuit.

119. The combination with t-uo olocili'i' n circuits, of circuit oo111'; 1'olli11g 111011115 Cuirm by 11 our, 11 current indicator in om; circul:

11115. 11 11111111111 uougifl. 111011111111 iu 1511111 1i-i191 winuil.

'11211 'liw voiuliiiullioh with 'two irloolorivul in-uni 1-111I1 ,lxmiug ou 11111? sido 11 plumlity of 1111111111114, ol' :1 01113111111 india-211 o1' iu o uo oil'- 411.1111, 1 ouvrent sl1oug1l1 rm'umoi in {lu} other oiuvuii. 11ml uuzuus 011111111! by 11 1.1111' ioi @suc-- 1v1-ij.' vlooi/1 lv commuting 'Llu 1111111111018 tho oppmsilo Sido of tho ciiafuit.

121. 'l`l1o cmubinutiou iu 1111 olfeotiio @ifN vuil, .f 1111.111115 im' writing 'iooolds o1" current i11o11gtl1, 111111 :1 1:111111111. sl'fi'ougli. indicator, 111111111111115' oyoz'iiud fix'uui coul/rolling111011115, mul :111111111111111 circ 11111 controlling; 1111111.11111 m11'- rimi 115' 11 c1111 122, The ooiubiimiiiou wif/l1 11, plulnliiy of stlougth roool'dms ioozuoll one 111 nach l'iiuhuilii, 111111 111011115 omiicri b v a 13111' foi; suofousivol-y olootimflly 11.111111115111113 Llio 015111.11' oil'oui. with 1,1112 @1111151111 sirio oi.'

1`3l1o oppositor1 11111 111.111)* 0119111511111 uit lol' on Said. wu, 11,111.1 01115111111', inc1112 "roof l 11111;: 1115.' Signo.-

11 two witnesses.

. 1111111.13 M. 131..-LK.

oiootioni circuits moli iizwiug ou ono sido 11 plumlity 0410011111115, of :1 plusilu'ny ol Current? 

